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How to Import Outlook OST File into Exchange Online?

CubexSoft OST to Office 365 Migration Tool to Move Bulk OST Data File to Office 365 Cloud Platform without Outlook

by Ritu Roy
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This blog will instruct users a very popular and professional way answering the question of how to import Outlook OST file into Exchange Online without any problem. Along with this, we will also discuss some reasons which force users to save OST files to Office 365 cloud account. As we know very well that the MS Outlook is the most popular email client all around the world. It includes all items like emails, contacts, calendars, tasks, etc. Also, it keeps two file formats i.e., OST and PST file in which users can save their essential data.

Let’s have a start the complete discussion on import OST file into Exchange Online without facing any kind of issue. Before directly going through with the best solution, we start with the reasons for OST to Office 365 conversion.

Reasons to Export OST Files to Office 365 Cloud Database

There are n number of reasons to perform the OST file to Office 365 migration process. Some of the basic reasons are mentioned below:

  • Organizations shift their data into Office365 accounts as it comes with more benefits to users in comparison to outlook.
  • MS Exchange crash and need a trustworthy cloud platform.
  • To avoid large Exchange maintenance downtime.
  • For quick to access data in a safe and healthy environment after accidental deletion.

Free Solution to Save OST Files to Office 365

Users can go with the free solution available for solving the issue of how to import Outlook OST file into Exchange Online. Under this solution, users have to go through the two conversion rounds which are properly given below:


Round l – Convert OST data to PST format

Round ll – Upload PST data files into cloud storage

For converting the OST data files into PST format, users can opt any of the manual solutions i.e.

Method 1 – with the help of the export feature of MS Outlook

Method 2 – Using the archive feature of MS Outlook

Method 3 – Last, import all Outlook folders to the new PST

After converting the OST to PST by following any of the manual methods, users can upload these PST files into O365 account. To upload these files, there are two manual techniques available i.e.

Method 1 – Using Drive Shipping Technique

Method 2 – Using Network Upload Technique

Why Experts not suggest this Manual Solution?

This solution comes with so many limitations which can directly deal with original OST files. These limitations are given below:

  • Highly technical steps are included.
  • Not suited for non-technical users.
  • A lengthy procedure takes a lot of time.
  • Depends upon human activities.
  • Skipping a step can lead to the data corruption.

OST to Office 365 Converter – An Expert’s Recommendation

To overcome all these limitations of the manual solution, users should try OST to Office 365 Converter Tool which is suggested by a maximum of professionals. The software is designed in such a manner to perfectly solve the user problem of how to import Outlook OST file into Exchange Online. Don’t worry the tool is safe for performing the OST file to O365 conversion process. Alongwith the conversion process, the tool offers so many benefits to its users such as a batch function for unlimited migration, different filters for selective migration, and so on. Let’s start with the step-by-step guide to save OST files to Office 365 without MS Outlook installation.

Step 1 – Launch OST Converter in the system and import the OST files by clicking on Add File/Add Folder, or loads Outlook profiles tabs

Step 2 – After loading OST files, the software will show a preview of all loaded files.

Step 3 – After that go to the Saving Options and choose Office 365 saving output format. Enter the login details of the Office 365 account and then fill in the all essential details accordingly.

Step 4 – A new screen opens which contains advanced filters, avail these filters as per the suitability to perform selective migration.

Step 5 – The conversion process starts and will be finished within a few seconds. After completing the process you can click OK.

Important Note: Save Report option is available which helps to save the complete report of the OST file to Office 365 migration.

Last Verdict         

I hope now you will get to know how to import Outlook OST file into Exchange Online without any errors. From the above-mentioned techniques, you can go with any of the solutions after analyzing the complete post. Users who want to go with the professional solution can free to download OST to Office 365 Converter which can save the first 20 OST items to O365 without any charges.


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